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Colour

#A4B4DD

  • #A4B4DD
  • Blue
  • Dark
  • Nearest: Light steelblue

#A4B4DD is a blue with RGB values 164, 180, 221 and HSL 223°, 46%, 75%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#A4B4DD#A4B4DD
HEX#A4B4DD
RGBrgb(164, 180, 221)
RGB (0–1)0.6431, 0.7059, 0.8667
RGB percentages64.3%, 70.6%, 86.7%
HSLhsl(223.2, 45.6%, 75.5%)
HSV / HSBhsv(223.2, 25.8%, 86.7%)
CMYK25.8%, 18.6%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,794,205
CSS custom property--colour: #A4B4DD;

Brightness & contrast

Relative luminance0.45755WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.15:1
Contrast with white2.07:1WCAG normal text: Fail
Contrast with black10.15:1WCAG normal text: AAA
Greyscale equivalent#B4B4B4
Inverted#5B4B22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A7B7DFno red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#A3B2DCno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#95BCC2no blue cones; rare, and affects men and women equally; ΔE 21.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.07:1WCAG large text: Fail
Contrast with black, large text10.15:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 10Light skyblue · ΔE 16.8Thistle · ΔE 17.7Sky blue · ΔE 19.3Light blue · ΔE 20.9Light slate grey · ΔE 21.6
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 10.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDCDA4
Analogous#A4D1DD, #B1A4DD
Triadic#DDA4B4, #B4DDA4
Split complementary#DDB1A4, #D1DDA4
Tetradic#DDA4D1, #DDCDA4, #A4DDB1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#EEF1F9
Lighter +10%#C9D3EB
Darker −10%#7F95CF
Darker −20%#5A77C1
Darker −30%#3F5DA9
Darker −40%#314884
More saturated +25%#94ADED
Less saturated −25%#B4BBCD

Channel breakdown

R164
G180
B221
Red164 (64.3%)
Green180 (70.6%)
Blue221 (86.7%)
Hue223.16°
Saturation (HSL)45.6%
Lightness75.49%
Dominant channelBlue
Hex per channelR A4 · G B4 · B DD

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Every value on this page was computed from “a4b4dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.